JACKSONVILLE, Fla. -- The derailment of seven rail cars in the CSX Moncrief yard early Monday lead to a school evacuation after turpentine spilled out of one of the cars.

The derailment occurred around 4:40 a.m. Monday when rail cars were being switched around, according to Gary Sease of CSX Public Relations.

Five of the cars were on their side while two of the cars were off the track by just a wheel or two, Sease said. The cars were rerailed by 7 a.m. Tuesday.

Students and staff participating in a summer school program at nearby S. P. Livingston Elementary School were evacuated to West Jacksonville Elementary School, according to Jill Johnson with Duval County Public Schools.

The school was cleared yesterday and the program is back at Livingston today, Johnson said.

Soil that was impacted by the turpentine is still being removed today, Sease said. Repair on the tracks will continue after the July 4 holiday.

Sease said derailments are not common and CSX works hard to prevent such incidents through car and track maintenance, Sease said.

An investigation into how the derailment occurred will take a few weeks to complete, Sease said.